Why Flashing Is Critical For Your Chimney

Chimney flashing is an important piece of a chimney that ensures there is a watertight seal between your chimney and roof. Flashing is made of vinyl, aluminum, copper, or steel — or a mix of multiple materials in some cases. The material used for your flashing is determined based on a few factors, such as your geographical location, how your chimney is constructed, and available materials.

Types of flashing available

1. Base or step flashing: This type of flashing is found under your roof and is bent upwards. This piece rests against your chimney’s exterior brick or stones, and is attached to ensure the seal is watertight.
2. Saddle flashing: This type of flashing is used if deemed necessary to assist with runoff. This piece creates a peak to allow runoff of snow and rain and is only necessary if the chimney is wider than 30”.
3. Counter flashing: This type of flashing is bent down and is installed so it is in the joints of your chimney.

Why is my flashing having issues?

There are three main causes of any flashing issues. There could be a mix of several, or your flashing issues may be due to one single issue. Some possible issue are:

Normal wear and tear

Chimney flashing is subject to normal rain and snow storms throughout the year. With repeated exposure, this can cause deterioration, missing pieces, or even broken components. This is the most common cause of chimney flashing issues.

Water damage and rust

Since some flashings are made of material that is susceptible to rust, this may occur overtime. Luckily, this issue can be solved by replacing pieces to ensure your watertight seal is reestablished.

Foundation Settling

When homes settle, or seismic activity occurs, your house may shift ever so slightly. This is typically not noticeable unless there is serious damage, however it can lead to flashing issues if it does occur.

How can a broken flashing impact your chimney?

If your chimney flashing is damaged, the first sign of issues you may notice is water damage. Since a properly functioning flashing is designed to keep water out of your house, a broken flashing can be a direct entryway for water.

What should I do if I notice flashing issues?

If you notice any of the issues, it’s best to call a professional as soon as possible. If you experience water damage inside your home, you should call to minimize future issues, such as attic damage, roof damage, or even further deterioration of your chimney or masonry.

Chimney Flashing Issues? Call Fire N Stone Today

Fire N Stone is a full-service chimney service that can help if you are experiencing chimney flashing issues. W e’re the local, trusted team to call for assistance. No matter the severity of your flashing issues, our experts can handle it. We also support our clients with routine chimney maintenance, masonry repair, or even outdoor kitchen installation. We never subcontract our work, which means you work with the same trusted team the entire time.